18ct Pink Gold Hublot Big Bang 301.PB.131.RX. Automatic chronograph Hublot HUB 4100 movement. 44mm case diameter. Black carbon effect dial with rose gold index and Arabic numeral hour markers and black sub dials. Rose gold luminescent hands. Sapphire crystal see through case back. Black rubber strap with 18ct rose gold folding clasp. Box and papers dated March 2006. Service papers dated 2018.